I want to add additional information about the watch due to follow up questions since I listed it. To my knowledge, I have taken it to a jeweler once to have it cleaned - no record of the repair kept, memory only. I wore this watch daily for over 20 years and loved it. It kept perfect time and all features worked great. As time and my age passed, I was ready for a change due to its weight and size. I was also a little concerned by the attention it drew and that someone may want to take it from me. So, when it stopped working one day, I just retired it without having it checked, and bought another Seiko. Whoever obtains it may have a diamond or a chunk of coal after opening it and having it looked at.